Lock.



' A. A. WYCKOFF.

LOCK. 7

APPLICATION FILED MAY 3, ms.

1,239,244. Patented Sept. 4,1917.

2 SHEETS-SHEET 1.

A. A. WYCKOFF.

LOCK;

APPLICATION FILED MAY 3, 1915.

1,239,244. Patented Sept. 4, 1917.

2 SHEETS-SHEET 2.

. UNITED STATES PATENT oFmoE.

AMOS A. WYCKOF F, OF SANTA CRUZ, CALIFORNIA, ASSIGNOB TO COIN TIMELOCK 00., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

LOCK.

Specification of Letters Patent.

Patented Sept, 4, 19117,,

Application filed May 8, 1915. Serial No, 25,391.

installed in railway stations, hotels and like public places and are usually coin-controlled in their operation.

One object of the present invention, which relates to looks enerally whether coin-con trolled or not, 1s to provide an improved means for automatically preventing the retraction of the bolt when it has been shot to locking position until after the key has been withdrawn and reinserted, thereby insuring the locked condition of the door when the key is withdrawn after locking the-same.

It has heretofore been proposed to accomplish this result by means of a spring-actuated and key released device which, through engagement with the cylinder or barrel of the lock, operates to prevent rota tion of the cylinder by the key after the bolt has been moved to locking position until after the key has been withdrawn and then reinserted to retract said device from the cylinder. In accordance with my present invention I accomplish this result through the agency of a spring-actuated and keyreleased device, which, however, engages the bolt of the lock instead of the cylinder to prevent retraction of the bolt after the same has been moved to locking position until after the key has been withdrawn and then geilnserted to retract said device from the Other minor objects and advantages of the invention will be apparent from the following detailed description when taken in connection with the accompanying drawings wherein I have illustrated one practical and approved embodiment of my improvements, and in which- Figure 1 is a front elevation of the lockcasing, with the bolt appearing in locking position;

2 is a rear eleyation of $1119 with traction of the bolt.

the rear cover plate removed to show the interior mechamsm;

Fi 3 is a view similar to Fig. 2 but showing t e relative positions of the parts of the mechanism when the bolt is retracted; Figs. 2 and 3 showing mainly the register-actuating mechanism; a

Fig. 4 is a view in vertical section through the lock casin and coin slot, showing principally the b0 t controlling mechanism and omitting the register-actuating mechanism for the sake of clearness;

Fig. 5 is a vertical section through the entire lock in a plane at right angles to the section of Fig. 4 and showing the relative positions of the parts when the bolt has con shot to locking position and is locked against retraction;

Fig. 6 is a view similar to Fig. 5 showing the relative positions of the parts when the key shown in Fig. 5 has been withdrawn and reinserted and the bolt thereby released showmg the relative positions of the parts when the lock has been unlocked by the re- Referring to the drawings, 10 designates the front wall and 11 and 12 the side walls of the lock housing or casing, which may be made integral; 13 designates an upper removable section ofthe rear wall secured in place by screws 14 and'containing a sight opening 15 covering the counter-wheels of the register; and 16 designates a lower removable section of the rear wall of the housing Y which, in cooperation with the front wall and a base or bottom wall 17 may serve in art as a coin receptacle.

ecured to the inner face of the front wall 10 is a coin chute 18, and at the lower endside of the bolt 20 is formed a coin pocket 21 that, when the bolt is retracted registers with the lower end of the coin chute 18, and when the bolt is in locking position registers with a slot 22 in the lower wall of the bolt' housing 19. Slidably mounted in the coin chute 18 is a bolt-locking member 23, and

a e th am a fraud-P e n Slide ably channeled to form, in conjunction with the wall 10, the coin slideway proper. On

the lower end of the member 23 is a tooth 25 that normally enters and coiiperates with a similarly shaped notch 26 in the upper edge of the bolt 20 to lock the latter in retracted position. When a coin is deposited and comes to rest in the coin pocket. 21 of the bolt, the upper edge of the coin engages.

the lower end of the tooth 25, and, as the bolt is moved outwardly, raises the tooth 25 out of engagement with the notch 26, thereby releasing the bolt. When the bolt has been shot to locking position, the lower end of the coin pocket 21 of the bolt registers with the slot 22 of the bolt housing and permits the coin to drop into the coin receptacle formed in the lower portion of the lock casing.

The above described coin-controlled lock for the locking bolt is preferably employed in association with the novel features herei inafter described, but forms no part of my present invention.

Referring now to that feature of my present invention which resides in an improved key-controlled locking device for.

the bolt, 27 designates the cylinder housing and 28 the escutcheon plate of an ordinary cylinder lock, the cylinder housing containing the usual tumbler-controlled and keyoperated cylinder 29. Secured to the inner end of the cylinder 29 is a bolt-actuating arm 30 having a slotted outer end 31 (Fig.

3) that engages a stud 32 mounted in the bolt 20 and projecting through a slot 33in the bolt housing 19.

Pivoted in a stud 34 secured to the rear face of the front wall 10 of the lock housing near its lower end is a bar 35, the lower end of which is formedwith a slot 36 engaging the pivot pin 37 to ermit a slight endwise movement of said bar as herein after described. The bar 35 near its free end is guided in-a forked keeper 38 and at its free end is adapted to play throu h a transverse slot 39 in the lower ed e of the lock housin 19. The free end 0 the-bar 35 is norma y urged into said slot 39 by a bow-spring 40 that is secured at 41 to the base of the stud 34 or to the wall 10 and at its free end engages a laterally extending pin 42 on the bar 35. The slot 39 of the bolt housing is so located that when the bolthas been moved to locking position as indicated in Figs. 2 and 4, the free end of the bar 35, under the impulse of spring 40, snaps into a position behind the rear end of'the bolt, or into a shallow notch 20' formed in said rear end of the latter, thereby locln'ng the bolt in its locking position until said locking bar 35 is withdrawn. When the bolt is retracted the free end of the looking bar 35 lies against the side of the bolt 'as shown in Fig. 7, but when the bolt is upon withdrawal and subsequent reinsertion of the key through the mechanism next to be described.

Lateral pin 42 carried by the locking bar 35 has an upwardly bent free end portion 43 that extends through a slot 44 in the lower side of the cylinder housing 27 and extends within the lower portion. of the key-groove of the cylinder, this latter being slightly flattened or countersunk adjacent to the lower edge of the key-groove on one side of the latter as indicated at 45 in Fig. 4 to permit the necessary turning movement of the cylinder to shoot and retract the bolt Without interference by the finger 43. On the lower edge of the key 46 is a lug 47 having a vertical forward face and an inclined rear face as clearly shown in Figs. 5, 6 and 7. When the bolt is in retracted position the path of the lug 47 is to one side of the finger 43; but when the cylinder has been turned to throw the bolt into locking position the finger 43 lies directly across the path of travel of the lug 47.

The lock shown is of that type wherein, by reason of any preferred construction well known in the art the key is automatically locked in the keyway of the cylinder when the bolt is retracted and can be withdrawn only when the bolt has been shot to locking position. The normal position of the parts is that illustrated in Fig. 7 wherein the bolt is retracted and consequently the cabinet or locker is unlocked and the key is locked in the keyway. The user of the device drops a coin, a dime for instance, in a coin-slot 48 (Figs. 1 and 5) at the upper end of the coin chute, and through the agency of the coin the coin-controlled locking member 25 of the bolt is forced upwardly out of locking position when the bolt is actuated to locking position by a slight turning movement of the key. The instant the rear end of the bolt passes beyond the free end of the locking bar 35 the latter snaps into place behind the bolt as shown in Fig. 5 so that the latter cannot be retracted by merely turning the key in the opposite irection. The user then withdraws the key from the cylinder, during which operation the inclined rear side of the lug 47 engages a correspondingly inclined enl 43' of the finger 43 thereby depressing the latter, which is permitted by the slotted engagement of the locking bar 35 with its pivot pin 37. When the user desires to the cabinet he reinserts the key, and the engagement of the forward Vertical e d of unlock the lug 47 with the vertical side of the finger 43 throws the locking bar 35 out of engagement with the bolt, as shown in Fig. 6, so that the bolt can be retracted by a turning movement of the key in the properdirection. Such turning movement of the key and its cylinder to retract the bolt carries the lug 47 to one. side of the path of movement of the finger 43, so that the looking bar 35, under the impulse of spring 40, returns into engagement with the side of the bolt as shown in Fig. 7.

From the foregoing it will be seen that I have provided in connection with a bolt and key-actuated means for operating said bolt, a means engaging the bolt to automatically look the latter against retraction when moved to locking position, which bolt-locking means is releasable only upon the withdrawal and reinsertion of the key in the look. This is desirable for the reason that in looks of this character the turning move ment of the key required to shoot and retract the bolt is very slight, and a user, in withdrawing the key might easily give it a slight backward turn unintentionally thereby unlocking the lock and necessitating the deposit of another coin in order to relock the lock.

Referring now to those features of my inyention which relate to the register-actuat mg mechanism, and referring to Figs. 2, 3

and 5, 5O designates a dollars-indicating register wheel and 51 a cents-indicating register wheel, both journaled on the inner wall of the coin chute 18, the two counter-wheels being of a. well .known type wherein the upper or dollarsrregistering wheel is actuated one step from the lower or cents-registering wheel at each complete revolution of the latter, the particular structure or type of these register wheels being immaterial to the present invention. Secured to the rear of the cents-registering wheel 51 is a ratchet disk 52, and journaled on the stud 53, which carries the wheel 51 and its ratchet, is a plate 54 having a depending portion 55 in which is formed a cam slot 56 through which extends the stud 32 that connects the actuating arm 30 to the bolt 20. Pivoted at 57 to the plate 54 is a pawl 58 that engages the ratchet disk 52 and advances the ratchet wheel 51 one step at each outward or looking movement of the bolt 20. The pawl-carrying plate 54 swings rearward-lythrough engagement of the stud 32 with the lower side of the cam slot 56, and forwardly through engagement of the stud 32 with the upper side of the cam slot 56. A leaf spring 59 secured to a side wall of the lock casing at 60 bears at its free end on the stud 32 and assists inv the retracting movement of the bolt and normally maintains the latter in retracted position. A drag pawl 61 coiiperates with the ratchet disk 52 to prevent overthrow of the latter in a manner well understood. The counter disks 50 and 51 are provided on their faces with rows of numerals spaced at uniform intervals, and the proximate numerals on the contiguous portions of the peripheries of the two disks are readily visible through the sight opening. 15 in the rear wall of the lock casing, whereby it is possible to ascertain at a glance the amount of money that is in the collection receptacle of the look at any given time.

It is believed .that the nature of my improvements, their mode of operation, and

the advantages attending the same Wlll be readily apparent to those acquainted with this art without further detailed descrlption; and hence, without limiting myself to the bolt by withdrawal and reinsertion of the key in the lock.

2. In a lock, the combination of a bolt, key-actuated means for operating said bolt, means for engaging said bolt to automatically lock the same against retraction immediately upon being moved to locking position, and key-actuated means for withdrawing said bolt-locking means from the bolt upon reinsertion of the key in the lock and prior to rotative movement of the key.

3.'In a lock, the combination of a bolt, key-actuated means for operating said bolt, a locking bar adapted to cotipera'te with said bolt to lock the latter in looking position, a spring for urging said locking bar into look- .ing engagement with said bolt before withto project said locking bar across the path of said bolt, and means connected with said bar and positioned to be engaged by a key when said key is inserted into and withdrawn from the cylinder for moving said barto inoperative position upon insertion of the key and adapted to be depressed by the key upon withdrawal thereof.

5. In a lock, the combination of a bolt, key-actuated means for operating said bolt, a pivoted locking bar the free end of which is movable crosswise of the path of movement of said bolt, a keeper guide for the free end portion of said locking bar, a spring normall tending to swing said locking bar into locking engagement with said bolt, a key having a contact lug intermediate the ends thereof, and a coiiperating contact member carried by said locking bar normally projecting across the path of movement of said contact lu when the key is being inserted in the loc whereby the insertion of the key frees the bolt from said locking bar.

6. In a lock, the combination of a bolt,

key-actuated means for operating said bolt,

a locking bar mounted at one end with capacity for both pivotal and endwise sliding movement and having its free end movable crosswise of the path of movement of said bolt, a keeper guide for the free end portion of said locking bar, a spring normally imparting both a swinging and a sliding impulse to said locking bar and tending to maintain the free end of the latter across the path of movement of the bolt, a key having a contact lug formed with a vertical forward face and an inclined or cam-shaped rear face, and a cooperating contact member carried by said locking bar normally project ing across the path of movement of said contact lug when the key is inserted in the lock, whereby the insertion of the key when the bolt is in locking position frees the bolt from said locking bar and the subsequent turning of the key to retract the bolt frees the locking bar from control by the key.

7. In a lock, the combination of a transversely slotted bolt casing, a bolt slidably mounted therein, key-actuated means for operating said bolt, a locking bar having a free end portion movable in said slot of the bolt casing, said free end portion of the locking bar lying against a side of the bolt when the latter is retracted and engaging a transverse wall of the bolt when the latter is projected, a spring normally urging said locking bar toward the bolt, and cooperating contact devices carried rigidly on one edge of the key and on the'locking bar respectively, serving when the key is being inserted in the lock to force the free end portion of the locking bar out of engagement with the bolt.

'8. In a lock, the combination of a bolt, a key, key-actuated means for operating said bolt, 2. locking device movable into locking engagement with said bolt and provided with a projection, a spring tending to urge said device into operative position, and means fixedly mounted on one edge of the key intermediate the ends thereof for releasing said device from the bolt by engagement with said projection upon insertion of the key into the lock and prior to turning move ment of the key in the lock.

9. In a lock, the combination of a bolt, key-actuated means for operating said bolt, a locking device movable into locking engagement with said bolt, a spring for urging said device toward the bolt, an abutment projecting laterally from said locking device across the keyway of the lock, and a key provided with a contact lug on one edge thereof ada ted to engage said abutment and release t e locking device from the bolt during the insertion of the key into the lock.

AMOS A. WYOKOFF. 

